./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:08:54,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:08:54,997 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:08:55,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:08:55,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:08:55,038 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:08:55,039 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:08:55,040 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:08:55,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:08:55,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:08:55,044 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:08:55,044 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:08:55,044 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:08:55,045 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:08:55,045 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:08:55,045 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:08:55,045 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:08:55,045 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:08:55,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:08:55,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:08:55,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:08:55,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:08:55,058 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:08:55,058 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:08:55,059 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:08:55,059 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:08:55,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:08:55,060 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:08:55,060 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:08:55,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:08:55,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:08:55,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:08:55,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:08:55,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:08:55,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:08:55,062 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:08:55,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:08:55,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:08:55,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:08:55,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:08:55,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:08:55,063 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2024-10-11 17:08:55,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:08:55,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:08:55,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:08:55,307 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:08:55,308 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:08:55,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2024-10-11 17:08:56,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:08:56,843 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:08:56,843 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2024-10-11 17:08:56,863 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2e4d78061/48c2fc8ad0784674b4be25d138828e40/FLAGd82ad0cc6 [2024-10-11 17:08:57,151 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2e4d78061/48c2fc8ad0784674b4be25d138828e40 [2024-10-11 17:08:57,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:08:57,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:08:57,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:08:57,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:08:57,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:08:57,162 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:08:57" (1/1) ... [2024-10-11 17:08:57,163 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752696b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57, skipping insertion in model container [2024-10-11 17:08:57,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:08:57" (1/1) ... [2024-10-11 17:08:57,203 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:08:57,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:08:57,668 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:08:57,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:08:57,766 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:08:57,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57 WrapperNode [2024-10-11 17:08:57,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:08:57,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:08:57,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:08:57,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:08:57,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57" (1/1) ... [2024-10-11 17:08:57,789 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57" (1/1) ... [2024-10-11 17:08:57,830 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 244 [2024-10-11 17:08:57,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:08:57,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:08:57,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:08:57,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:08:57,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57" (1/1) ... [2024-10-11 17:08:57,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57" (1/1) ... [2024-10-11 17:08:57,844 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57" (1/1) ... [2024-10-11 17:08:57,845 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57" (1/1) ... [2024-10-11 17:08:57,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57" (1/1) ... [2024-10-11 17:08:57,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57" (1/1) ... [2024-10-11 17:08:57,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57" (1/1) ... [2024-10-11 17:08:57,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57" (1/1) ... [2024-10-11 17:08:57,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:08:57,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:08:57,883 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:08:57,883 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:08:57,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57" (1/1) ... [2024-10-11 17:08:57,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:08:57,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:57,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:08:57,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:08:57,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-11 17:08:57,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-10-11 17:08:57,952 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:08:57,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:08:57,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:08:57,953 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:08:57,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:08:57,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:08:57,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:08:57,953 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:08:57,953 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:08:57,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:08:57,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:08:57,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:08:57,955 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:08:58,108 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:08:58,110 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:08:58,520 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:08:58,521 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:08:58,541 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:08:58,542 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 17:08:58,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:08:58 BoogieIcfgContainer [2024-10-11 17:08:58,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:08:58,544 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:08:58,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:08:58,549 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:08:58,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:08:57" (1/3) ... [2024-10-11 17:08:58,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d087326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:08:58, skipping insertion in model container [2024-10-11 17:08:58,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:57" (2/3) ... [2024-10-11 17:08:58,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d087326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:08:58, skipping insertion in model container [2024-10-11 17:08:58,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:08:58" (3/3) ... [2024-10-11 17:08:58,552 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2024-10-11 17:08:58,564 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:08:58,564 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-10-11 17:08:58,564 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:08:58,636 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:08:58,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 273 transitions, 550 flow [2024-10-11 17:08:58,742 INFO L124 PetriNetUnfolderBase]: 2/272 cut-off events. [2024-10-11 17:08:58,743 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:58,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 272 events. 2/272 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2024-10-11 17:08:58,750 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 273 transitions, 550 flow [2024-10-11 17:08:58,758 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 274 places, 272 transitions, 547 flow [2024-10-11 17:08:58,768 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:08:58,775 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5fd5d0f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:08:58,775 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-11 17:08:58,784 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:08:58,784 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-11 17:08:58,785 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:58,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:58,785 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:58,786 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:08:58,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:58,791 INFO L85 PathProgramCache]: Analyzing trace with hash 588289797, now seen corresponding path program 1 times [2024-10-11 17:08:58,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:58,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303190382] [2024-10-11 17:08:58,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:58,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:59,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:59,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303190382] [2024-10-11 17:08:59,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303190382] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:59,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:59,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:59,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595982588] [2024-10-11 17:08:59,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:59,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:59,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:59,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:59,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:59,898 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 273 [2024-10-11 17:08:59,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 272 transitions, 547 flow. Second operand has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:59,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:59,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 273 [2024-10-11 17:08:59,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:00,643 INFO L124 PetriNetUnfolderBase]: 1377/4968 cut-off events. [2024-10-11 17:09:00,643 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:09:00,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7762 conditions, 4968 events. 1377/4968 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 37213 event pairs, 1344 based on Foata normal form. 36/4638 useless extension candidates. Maximal degree in co-relation 7665. Up to 2785 conditions per place. [2024-10-11 17:09:00,671 INFO L140 encePairwiseOnDemand]: 266/273 looper letters, 92 selfloop transitions, 5 changer transitions 0/270 dead transitions. [2024-10-11 17:09:00,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 270 transitions, 737 flow [2024-10-11 17:09:00,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:09:00,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:09:00,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1143 transitions. [2024-10-11 17:09:00,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6978021978021978 [2024-10-11 17:09:00,694 INFO L175 Difference]: Start difference. First operand has 274 places, 272 transitions, 547 flow. Second operand 6 states and 1143 transitions. [2024-10-11 17:09:00,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 270 transitions, 737 flow [2024-10-11 17:09:00,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 270 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:09:00,703 INFO L231 Difference]: Finished difference. Result has 277 places, 270 transitions, 552 flow [2024-10-11 17:09:00,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=552, PETRI_PLACES=277, PETRI_TRANSITIONS=270} [2024-10-11 17:09:00,708 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 3 predicate places. [2024-10-11 17:09:00,710 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 270 transitions, 552 flow [2024-10-11 17:09:00,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:00,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:00,712 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:00,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:09:00,713 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:09:00,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:00,714 INFO L85 PathProgramCache]: Analyzing trace with hash 88798604, now seen corresponding path program 1 times [2024-10-11 17:09:00,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:00,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848088625] [2024-10-11 17:09:00,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:00,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:01,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:01,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:01,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848088625] [2024-10-11 17:09:01,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848088625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:01,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:01,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:09:01,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908669405] [2024-10-11 17:09:01,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:01,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:09:01,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:01,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:09:01,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:09:01,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 273 [2024-10-11 17:09:01,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 270 transitions, 552 flow. Second operand has 6 states, 6 states have (on average 202.83333333333334) internal successors, (1217), 6 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:01,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:01,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 273 [2024-10-11 17:09:01,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:02,313 INFO L124 PetriNetUnfolderBase]: 762/4047 cut-off events. [2024-10-11 17:09:02,313 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:09:02,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5631 conditions, 4047 events. 762/4047 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 31117 event pairs, 460 based on Foata normal form. 0/3686 useless extension candidates. Maximal degree in co-relation 5584. Up to 1372 conditions per place. [2024-10-11 17:09:02,327 INFO L140 encePairwiseOnDemand]: 241/273 looper letters, 81 selfloop transitions, 90 changer transitions 0/370 dead transitions. [2024-10-11 17:09:02,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 370 transitions, 1094 flow [2024-10-11 17:09:02,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:09:02,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:09:02,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1379 transitions. [2024-10-11 17:09:02,334 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8418803418803419 [2024-10-11 17:09:02,334 INFO L175 Difference]: Start difference. First operand has 277 places, 270 transitions, 552 flow. Second operand 6 states and 1379 transitions. [2024-10-11 17:09:02,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 370 transitions, 1094 flow [2024-10-11 17:09:02,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 370 transitions, 1084 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:09:02,341 INFO L231 Difference]: Finished difference. Result has 281 places, 353 transitions, 1118 flow [2024-10-11 17:09:02,342 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1118, PETRI_PLACES=281, PETRI_TRANSITIONS=353} [2024-10-11 17:09:02,342 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 7 predicate places. [2024-10-11 17:09:02,342 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 353 transitions, 1118 flow [2024-10-11 17:09:02,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 202.83333333333334) internal successors, (1217), 6 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:02,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:02,343 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:02,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:09:02,344 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:09:02,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:02,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1585679875, now seen corresponding path program 1 times [2024-10-11 17:09:02,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:02,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001153496] [2024-10-11 17:09:02,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:02,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:02,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:02,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001153496] [2024-10-11 17:09:02,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001153496] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:02,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:02,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:09:02,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213178913] [2024-10-11 17:09:02,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:02,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:09:02,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:02,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:09:02,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:09:02,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 273 [2024-10-11 17:09:02,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 353 transitions, 1118 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:02,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:02,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 273 [2024-10-11 17:09:02,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:03,897 INFO L124 PetriNetUnfolderBase]: 2110/7415 cut-off events. [2024-10-11 17:09:03,897 INFO L125 PetriNetUnfolderBase]: For 1556/1568 co-relation queries the response was YES. [2024-10-11 17:09:03,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13845 conditions, 7415 events. 2110/7415 cut-off events. For 1556/1568 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 59857 event pairs, 1264 based on Foata normal form. 0/6797 useless extension candidates. Maximal degree in co-relation 13740. Up to 4041 conditions per place. [2024-10-11 17:09:03,937 INFO L140 encePairwiseOnDemand]: 232/273 looper letters, 187 selfloop transitions, 123 changer transitions 0/485 dead transitions. [2024-10-11 17:09:03,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 485 transitions, 2162 flow [2024-10-11 17:09:03,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:09:03,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:09:03,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1291 transitions. [2024-10-11 17:09:03,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7881562881562881 [2024-10-11 17:09:03,941 INFO L175 Difference]: Start difference. First operand has 281 places, 353 transitions, 1118 flow. Second operand 6 states and 1291 transitions. [2024-10-11 17:09:03,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 485 transitions, 2162 flow [2024-10-11 17:09:03,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 485 transitions, 2162 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:09:03,958 INFO L231 Difference]: Finished difference. Result has 290 places, 469 transitions, 2070 flow [2024-10-11 17:09:03,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2070, PETRI_PLACES=290, PETRI_TRANSITIONS=469} [2024-10-11 17:09:03,960 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 16 predicate places. [2024-10-11 17:09:03,961 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 469 transitions, 2070 flow [2024-10-11 17:09:03,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:03,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:03,962 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:03,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:09:03,962 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:09:03,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:03,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1646599047, now seen corresponding path program 1 times [2024-10-11 17:09:03,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:03,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241633106] [2024-10-11 17:09:03,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:03,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:04,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:04,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:04,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241633106] [2024-10-11 17:09:04,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241633106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:04,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:04,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:09:04,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721765427] [2024-10-11 17:09:04,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:04,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:09:04,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:04,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:09:04,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:09:04,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 273 [2024-10-11 17:09:04,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 469 transitions, 2070 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:04,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:04,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 273 [2024-10-11 17:09:04,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:05,888 INFO L124 PetriNetUnfolderBase]: 2413/8345 cut-off events. [2024-10-11 17:09:05,888 INFO L125 PetriNetUnfolderBase]: For 3708/3726 co-relation queries the response was YES. [2024-10-11 17:09:05,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17802 conditions, 8345 events. 2413/8345 cut-off events. For 3708/3726 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 67957 event pairs, 1292 based on Foata normal form. 0/7701 useless extension candidates. Maximal degree in co-relation 17683. Up to 4368 conditions per place. [2024-10-11 17:09:05,936 INFO L140 encePairwiseOnDemand]: 232/273 looper letters, 299 selfloop transitions, 123 changer transitions 0/601 dead transitions. [2024-10-11 17:09:05,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 601 transitions, 3562 flow [2024-10-11 17:09:05,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:09:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:09:05,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1291 transitions. [2024-10-11 17:09:05,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7881562881562881 [2024-10-11 17:09:05,939 INFO L175 Difference]: Start difference. First operand has 290 places, 469 transitions, 2070 flow. Second operand 6 states and 1291 transitions. [2024-10-11 17:09:05,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 601 transitions, 3562 flow [2024-10-11 17:09:05,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 601 transitions, 3402 flow, removed 80 selfloop flow, removed 0 redundant places. [2024-10-11 17:09:05,955 INFO L231 Difference]: Finished difference. Result has 299 places, 585 transitions, 3086 flow [2024-10-11 17:09:05,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1908, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3086, PETRI_PLACES=299, PETRI_TRANSITIONS=585} [2024-10-11 17:09:05,956 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 25 predicate places. [2024-10-11 17:09:05,956 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 585 transitions, 3086 flow [2024-10-11 17:09:05,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:05,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:05,957 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:05,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:09:05,957 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:09:05,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:05,957 INFO L85 PathProgramCache]: Analyzing trace with hash 755334796, now seen corresponding path program 1 times [2024-10-11 17:09:05,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:05,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095476010] [2024-10-11 17:09:05,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:05,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:06,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:06,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:06,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095476010] [2024-10-11 17:09:06,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095476010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:06,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:06,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:09:06,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136709478] [2024-10-11 17:09:06,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:06,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:09:06,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:06,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:09:06,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:09:06,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 273 [2024-10-11 17:09:06,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 585 transitions, 3086 flow. Second operand has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:06,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:06,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 273 [2024-10-11 17:09:06,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:08,120 INFO L124 PetriNetUnfolderBase]: 2735/9143 cut-off events. [2024-10-11 17:09:08,120 INFO L125 PetriNetUnfolderBase]: For 5402/5479 co-relation queries the response was YES. [2024-10-11 17:09:08,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21642 conditions, 9143 events. 2735/9143 cut-off events. For 5402/5479 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 74784 event pairs, 1246 based on Foata normal form. 0/8476 useless extension candidates. Maximal degree in co-relation 21510. Up to 4881 conditions per place. [2024-10-11 17:09:08,175 INFO L140 encePairwiseOnDemand]: 230/273 looper letters, 360 selfloop transitions, 180 changer transitions 0/768 dead transitions. [2024-10-11 17:09:08,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 768 transitions, 4754 flow [2024-10-11 17:09:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:09:08,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:09:08,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2024-10-11 17:09:08,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8168498168498168 [2024-10-11 17:09:08,179 INFO L175 Difference]: Start difference. First operand has 299 places, 585 transitions, 3086 flow. Second operand 6 states and 1338 transitions. [2024-10-11 17:09:08,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 768 transitions, 4754 flow [2024-10-11 17:09:08,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 768 transitions, 4358 flow, removed 198 selfloop flow, removed 0 redundant places. [2024-10-11 17:09:08,201 INFO L231 Difference]: Finished difference. Result has 309 places, 752 transitions, 4086 flow [2024-10-11 17:09:08,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=2702, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4086, PETRI_PLACES=309, PETRI_TRANSITIONS=752} [2024-10-11 17:09:08,203 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 35 predicate places. [2024-10-11 17:09:08,203 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 752 transitions, 4086 flow [2024-10-11 17:09:08,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:08,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:08,204 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:08,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:09:08,204 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:09:08,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:08,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1921247633, now seen corresponding path program 1 times [2024-10-11 17:09:08,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:08,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190578554] [2024-10-11 17:09:08,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:08,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:08,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:08,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:08,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190578554] [2024-10-11 17:09:08,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190578554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:08,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:08,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:09:08,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72161614] [2024-10-11 17:09:08,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:08,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:09:08,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:08,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:09:08,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:09:08,909 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 273 [2024-10-11 17:09:08,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 752 transitions, 4086 flow. Second operand has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:08,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:08,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 273 [2024-10-11 17:09:08,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:10,506 INFO L124 PetriNetUnfolderBase]: 3180/10480 cut-off events. [2024-10-11 17:09:10,506 INFO L125 PetriNetUnfolderBase]: For 8590/8696 co-relation queries the response was YES. [2024-10-11 17:09:10,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27889 conditions, 10480 events. 3180/10480 cut-off events. For 8590/8696 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 87524 event pairs, 1284 based on Foata normal form. 0/9787 useless extension candidates. Maximal degree in co-relation 27752. Up to 5371 conditions per place. [2024-10-11 17:09:10,561 INFO L140 encePairwiseOnDemand]: 230/273 looper letters, 513 selfloop transitions, 180 changer transitions 0/935 dead transitions. [2024-10-11 17:09:10,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 935 transitions, 6354 flow [2024-10-11 17:09:10,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:09:10,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:09:10,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2024-10-11 17:09:10,564 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8168498168498168 [2024-10-11 17:09:10,564 INFO L175 Difference]: Start difference. First operand has 309 places, 752 transitions, 4086 flow. Second operand 6 states and 1338 transitions. [2024-10-11 17:09:10,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 935 transitions, 6354 flow [2024-10-11 17:09:10,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 935 transitions, 6300 flow, removed 27 selfloop flow, removed 0 redundant places. [2024-10-11 17:09:10,601 INFO L231 Difference]: Finished difference. Result has 319 places, 919 transitions, 5722 flow [2024-10-11 17:09:10,602 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=4032, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5722, PETRI_PLACES=319, PETRI_TRANSITIONS=919} [2024-10-11 17:09:10,604 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 45 predicate places. [2024-10-11 17:09:10,604 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 919 transitions, 5722 flow [2024-10-11 17:09:10,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:10,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:10,606 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:10,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:09:10,606 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:09:10,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:10,607 INFO L85 PathProgramCache]: Analyzing trace with hash 449356076, now seen corresponding path program 1 times [2024-10-11 17:09:10,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:10,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593186760] [2024-10-11 17:09:10,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:10,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:11,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:11,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:11,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593186760] [2024-10-11 17:09:11,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593186760] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:11,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:11,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 17:09:11,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720541255] [2024-10-11 17:09:11,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:11,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 17:09:11,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:11,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 17:09:11,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-11 17:09:13,126 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-10-11 17:09:13,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 919 transitions, 5722 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:13,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:13,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-10-11 17:09:13,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:17,888 INFO L124 PetriNetUnfolderBase]: 4111/12732 cut-off events. [2024-10-11 17:09:17,889 INFO L125 PetriNetUnfolderBase]: For 15762/15857 co-relation queries the response was YES. [2024-10-11 17:09:17,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38443 conditions, 12732 events. 4111/12732 cut-off events. For 15762/15857 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 106101 event pairs, 787 based on Foata normal form. 37/12138 useless extension candidates. Maximal degree in co-relation 38294. Up to 4181 conditions per place. [2024-10-11 17:09:17,954 INFO L140 encePairwiseOnDemand]: 216/273 looper letters, 921 selfloop transitions, 276 changer transitions 0/1416 dead transitions. [2024-10-11 17:09:17,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1416 transitions, 11032 flow [2024-10-11 17:09:17,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-11 17:09:17,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-10-11 17:09:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5542 transitions. [2024-10-11 17:09:17,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6548505258182677 [2024-10-11 17:09:17,964 INFO L175 Difference]: Start difference. First operand has 319 places, 919 transitions, 5722 flow. Second operand 31 states and 5542 transitions. [2024-10-11 17:09:17,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1416 transitions, 11032 flow [2024-10-11 17:09:18,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 1416 transitions, 10672 flow, removed 180 selfloop flow, removed 0 redundant places. [2024-10-11 17:09:18,038 INFO L231 Difference]: Finished difference. Result has 374 places, 1026 transitions, 7334 flow [2024-10-11 17:09:18,039 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=5362, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=696, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=7334, PETRI_PLACES=374, PETRI_TRANSITIONS=1026} [2024-10-11 17:09:18,040 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 100 predicate places. [2024-10-11 17:09:18,040 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 1026 transitions, 7334 flow [2024-10-11 17:09:18,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:18,041 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:18,041 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:18,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:09:18,041 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:09:18,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:18,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1911054158, now seen corresponding path program 2 times [2024-10-11 17:09:18,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:18,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657530964] [2024-10-11 17:09:18,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:18,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:18,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:18,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:18,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657530964] [2024-10-11 17:09:18,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657530964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:18,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:18,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 17:09:18,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351890622] [2024-10-11 17:09:18,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:18,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 17:09:18,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:18,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 17:09:18,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-11 17:09:20,083 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-10-11 17:09:20,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 1026 transitions, 7334 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:20,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:20,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-10-11 17:09:20,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:23,447 INFO L124 PetriNetUnfolderBase]: 5069/15573 cut-off events. [2024-10-11 17:09:23,448 INFO L125 PetriNetUnfolderBase]: For 29397/29730 co-relation queries the response was YES. [2024-10-11 17:09:23,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52356 conditions, 15573 events. 5069/15573 cut-off events. For 29397/29730 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 134860 event pairs, 792 based on Foata normal form. 38/14883 useless extension candidates. Maximal degree in co-relation 52181. Up to 2883 conditions per place. [2024-10-11 17:09:23,642 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1340 selfloop transitions, 200 changer transitions 0/1759 dead transitions. [2024-10-11 17:09:23,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 1759 transitions, 16168 flow [2024-10-11 17:09:23,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 17:09:23,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-11 17:09:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3946 transitions. [2024-10-11 17:09:23,649 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.657009657009657 [2024-10-11 17:09:23,649 INFO L175 Difference]: Start difference. First operand has 374 places, 1026 transitions, 7334 flow. Second operand 22 states and 3946 transitions. [2024-10-11 17:09:23,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 1759 transitions, 16168 flow [2024-10-11 17:09:23,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 1759 transitions, 15958 flow, removed 64 selfloop flow, removed 5 redundant places. [2024-10-11 17:09:23,850 INFO L231 Difference]: Finished difference. Result has 404 places, 1170 transitions, 9471 flow [2024-10-11 17:09:23,851 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=7194, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1026, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=867, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=9471, PETRI_PLACES=404, PETRI_TRANSITIONS=1170} [2024-10-11 17:09:23,853 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 130 predicate places. [2024-10-11 17:09:23,853 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 1170 transitions, 9471 flow [2024-10-11 17:09:23,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:23,855 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:23,855 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:23,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:09:23,855 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:09:23,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:23,858 INFO L85 PathProgramCache]: Analyzing trace with hash 578424137, now seen corresponding path program 1 times [2024-10-11 17:09:23,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:23,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615642769] [2024-10-11 17:09:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:23,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:24,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:24,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:24,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615642769] [2024-10-11 17:09:24,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615642769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:24,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:24,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 17:09:24,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941309515] [2024-10-11 17:09:24,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:24,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 17:09:24,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:24,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 17:09:24,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-11 17:09:25,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-10-11 17:09:25,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 1170 transitions, 9471 flow. Second operand has 15 states, 15 states have (on average 159.8) internal successors, (2397), 15 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:25,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:25,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-10-11 17:09:25,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:30,256 INFO L124 PetriNetUnfolderBase]: 6150/18399 cut-off events. [2024-10-11 17:09:30,257 INFO L125 PetriNetUnfolderBase]: For 47860/48234 co-relation queries the response was YES. [2024-10-11 17:09:30,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67252 conditions, 18399 events. 6150/18399 cut-off events. For 47860/48234 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 162462 event pairs, 1277 based on Foata normal form. 93/17663 useless extension candidates. Maximal degree in co-relation 67064. Up to 5066 conditions per place. [2024-10-11 17:09:30,571 INFO L140 encePairwiseOnDemand]: 221/273 looper letters, 1517 selfloop transitions, 209 changer transitions 0/1975 dead transitions. [2024-10-11 17:09:30,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 1975 transitions, 20177 flow [2024-10-11 17:09:30,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 17:09:30,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-11 17:09:30,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3983 transitions. [2024-10-11 17:09:30,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6631701631701632 [2024-10-11 17:09:30,579 INFO L175 Difference]: Start difference. First operand has 404 places, 1170 transitions, 9471 flow. Second operand 22 states and 3983 transitions. [2024-10-11 17:09:30,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 1975 transitions, 20177 flow [2024-10-11 17:09:30,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 1975 transitions, 19906 flow, removed 109 selfloop flow, removed 2 redundant places. [2024-10-11 17:09:30,924 INFO L231 Difference]: Finished difference. Result has 438 places, 1315 transitions, 11526 flow [2024-10-11 17:09:30,926 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=9268, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=998, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=11526, PETRI_PLACES=438, PETRI_TRANSITIONS=1315} [2024-10-11 17:09:30,926 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 164 predicate places. [2024-10-11 17:09:30,926 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 1315 transitions, 11526 flow [2024-10-11 17:09:30,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.8) internal successors, (2397), 15 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:30,927 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:30,927 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:30,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:09:30,927 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:09:30,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:30,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1516309818, now seen corresponding path program 3 times [2024-10-11 17:09:30,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:30,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188451768] [2024-10-11 17:09:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:30,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:31,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:31,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:31,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188451768] [2024-10-11 17:09:31,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188451768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:31,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:31,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 17:09:31,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248527472] [2024-10-11 17:09:31,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:31,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 17:09:31,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:31,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 17:09:31,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-11 17:09:32,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-10-11 17:09:32,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1315 transitions, 11526 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:32,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:32,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-10-11 17:09:32,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:38,525 INFO L124 PetriNetUnfolderBase]: 7136/21244 cut-off events. [2024-10-11 17:09:38,525 INFO L125 PetriNetUnfolderBase]: For 65009/65795 co-relation queries the response was YES. [2024-10-11 17:09:38,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82993 conditions, 21244 events. 7136/21244 cut-off events. For 65009/65795 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 193794 event pairs, 2002 based on Foata normal form. 104/20381 useless extension candidates. Maximal degree in co-relation 82786. Up to 10216 conditions per place. [2024-10-11 17:09:38,874 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1447 selfloop transitions, 208 changer transitions 0/1901 dead transitions. [2024-10-11 17:09:38,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 1901 transitions, 20196 flow [2024-10-11 17:09:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 17:09:38,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-11 17:09:38,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3044 transitions. [2024-10-11 17:09:38,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6558931264813618 [2024-10-11 17:09:38,877 INFO L175 Difference]: Start difference. First operand has 438 places, 1315 transitions, 11526 flow. Second operand 17 states and 3044 transitions. [2024-10-11 17:09:38,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 1901 transitions, 20196 flow [2024-10-11 17:09:39,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 1901 transitions, 20053 flow, removed 54 selfloop flow, removed 2 redundant places. [2024-10-11 17:09:39,440 INFO L231 Difference]: Finished difference. Result has 467 places, 1434 transitions, 14042 flow [2024-10-11 17:09:39,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=11471, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=14042, PETRI_PLACES=467, PETRI_TRANSITIONS=1434} [2024-10-11 17:09:39,441 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 193 predicate places. [2024-10-11 17:09:39,442 INFO L471 AbstractCegarLoop]: Abstraction has has 467 places, 1434 transitions, 14042 flow [2024-10-11 17:09:39,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:39,442 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:39,443 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:39,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:09:39,443 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:09:39,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:39,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1392137234, now seen corresponding path program 4 times [2024-10-11 17:09:39,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:39,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653079731] [2024-10-11 17:09:39,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:39,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:39,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:39,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653079731] [2024-10-11 17:09:39,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653079731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:39,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:39,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 17:09:39,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900444487] [2024-10-11 17:09:39,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:39,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 17:09:39,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:39,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 17:09:39,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-11 17:09:41,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-10-11 17:09:41,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 1434 transitions, 14042 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:41,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:41,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-10-11 17:09:41,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:51,798 INFO L124 PetriNetUnfolderBase]: 12146/35011 cut-off events. [2024-10-11 17:09:51,798 INFO L125 PetriNetUnfolderBase]: For 147376/148630 co-relation queries the response was YES. [2024-10-11 17:09:52,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150468 conditions, 35011 events. 12146/35011 cut-off events. For 147376/148630 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 350995 event pairs, 2321 based on Foata normal form. 238/33942 useless extension candidates. Maximal degree in co-relation 150246. Up to 11999 conditions per place. [2024-10-11 17:09:52,564 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 2542 selfloop transitions, 389 changer transitions 0/3177 dead transitions. [2024-10-11 17:09:52,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 3177 transitions, 38983 flow [2024-10-11 17:09:52,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-11 17:09:52,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-10-11 17:09:52,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4862 transitions. [2024-10-11 17:09:52,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6596119929453262 [2024-10-11 17:09:52,570 INFO L175 Difference]: Start difference. First operand has 467 places, 1434 transitions, 14042 flow. Second operand 27 states and 4862 transitions. [2024-10-11 17:09:52,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 3177 transitions, 38983 flow [2024-10-11 17:09:54,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 3177 transitions, 38659 flow, removed 162 selfloop flow, removed 0 redundant places. [2024-10-11 17:09:54,471 INFO L231 Difference]: Finished difference. Result has 513 places, 1692 transitions, 19444 flow [2024-10-11 17:09:54,472 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=13726, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=19444, PETRI_PLACES=513, PETRI_TRANSITIONS=1692} [2024-10-11 17:09:54,473 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 239 predicate places. [2024-10-11 17:09:54,473 INFO L471 AbstractCegarLoop]: Abstraction has has 513 places, 1692 transitions, 19444 flow [2024-10-11 17:09:54,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:54,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:54,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:54,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 17:09:54,474 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:09:54,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:54,474 INFO L85 PathProgramCache]: Analyzing trace with hash 554784608, now seen corresponding path program 5 times [2024-10-11 17:09:54,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:54,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524298106] [2024-10-11 17:09:54,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:54,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:54,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:54,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:54,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524298106] [2024-10-11 17:09:54,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524298106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:54,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:54,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 17:09:54,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756032580] [2024-10-11 17:09:54,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:54,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 17:09:54,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:54,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 17:09:54,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-11 17:09:56,562 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-10-11 17:09:56,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 1692 transitions, 19444 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:56,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:56,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-10-11 17:09:56,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:12,937 INFO L124 PetriNetUnfolderBase]: 15987/45615 cut-off events. [2024-10-11 17:10:12,937 INFO L125 PetriNetUnfolderBase]: For 268422/270158 co-relation queries the response was YES. [2024-10-11 17:10:14,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211336 conditions, 45615 events. 15987/45615 cut-off events. For 268422/270158 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 481420 event pairs, 2056 based on Foata normal form. 277/44336 useless extension candidates. Maximal degree in co-relation 211093. Up to 14853 conditions per place. [2024-10-11 17:10:14,427 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 2431 selfloop transitions, 535 changer transitions 0/3212 dead transitions. [2024-10-11 17:10:14,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 3212 transitions, 42687 flow [2024-10-11 17:10:14,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-11 17:10:14,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-10-11 17:10:14,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 5064 transitions. [2024-10-11 17:10:14,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6624803767660911 [2024-10-11 17:10:14,431 INFO L175 Difference]: Start difference. First operand has 513 places, 1692 transitions, 19444 flow. Second operand 28 states and 5064 transitions. [2024-10-11 17:10:14,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 3212 transitions, 42687 flow [2024-10-11 17:10:18,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 3212 transitions, 42163 flow, removed 262 selfloop flow, removed 0 redundant places. [2024-10-11 17:10:18,815 INFO L231 Difference]: Finished difference. Result has 560 places, 1900 transitions, 24863 flow [2024-10-11 17:10:18,816 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=18952, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1692, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=348, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=24863, PETRI_PLACES=560, PETRI_TRANSITIONS=1900} [2024-10-11 17:10:18,816 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 286 predicate places. [2024-10-11 17:10:18,817 INFO L471 AbstractCegarLoop]: Abstraction has has 560 places, 1900 transitions, 24863 flow [2024-10-11 17:10:18,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:10:18,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:18,818 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:10:18,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 17:10:18,818 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-11 17:10:18,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:18,818 INFO L85 PathProgramCache]: Analyzing trace with hash -976799219, now seen corresponding path program 2 times [2024-10-11 17:10:18,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:18,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894920723] [2024-10-11 17:10:18,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:18,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:10:19,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:19,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894920723] [2024-10-11 17:10:19,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894920723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:19,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:19,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 17:10:19,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792796464] [2024-10-11 17:10:19,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:19,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 17:10:19,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:19,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 17:10:19,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-11 17:10:20,611 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-10-11 17:10:20,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 1900 transitions, 24863 flow. Second operand has 15 states, 15 states have (on average 159.8) internal successors, (2397), 15 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:10:20,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:20,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-10-11 17:10:20,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand